The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 1980
Filed:
Jan. 15, 1979
Applicant:
Inventors:
George I Boyadjieff, Anaheim, CA (US);
Jerry A Gill, Houston, TX (US);
Assignee:
Varco International, Inc., Orange, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A44B / ;
U.S. Cl.
CPC ...
2426 / ;
Abstract
A slip assembly for supporting well pipe in a rotary table and including a slip bowl structure to be received and supported within the rotary table in a relation to turn with it, a carrier structure supporting a plurality of slips and mounted for upward and downward movement relative to the slip bowl structure and with the slips, latch means for releasably retaining the carrier structure and slips in a lower active pipe gripping position, and yielding means urging the carrier structure and slips upwardly to retracted positions when the latch means are released.